Kickflip Quake (1999)

Kickflip Quake was a popular, humorous modification early in the Quake modding scene, inspired by Tony Hawk Pro Skater, and allowed for online co-op play. Also included were numerous "skate" maps. Its creator, Micheal Büttner, as well as the mod, were featured in the Video Game Museum, which acknowledged the "Beginning of Modding".